NL87399C - - Google Patents

Info

Publication number: NL87399C
Authority: NL; Netherlands

Application number

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1951-05-22

Publication of NL87399C publication Critical patent/NL87399C/xx

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
- H04R17/04—Gramophone pick-ups using a stylus; Recorders using a stylus

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)

NL87399D 1951-05-22 NL87399C (cg-RX-API-DMAC10.html)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US1059013XA	1951-05-22	1951-05-22

Publications (1)

Publication Number	Publication Date
NL87399C true NL87399C (cg-RX-API-DMAC10.html)

Family

ID=22308422

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL87399D NL87399C (cg-RX-API-DMAC10.html)	1951-05-22

Country Status (2)

Country	Link
FR (1)	FR1059013A (cg-RX-API-DMAC10.html)
NL (1)	NL87399C (cg-RX-API-DMAC10.html)

0
- NL NL87399D patent/NL87399C/xx active
1952
- 1952-04-04 FR FR1059013D patent/FR1059013A/fr not_active Expired

Also Published As

Publication number	Publication date
FR1059013A (fr)	1954-03-22

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